I am delighted to be a business sponsor for the annual Open Farm Tours--- free, self-guided visits to local, organic family farms. http://www.openfarmtours.com/sponsors/
Farms on the tour are all within about a 10-mile radius, and use sustainable agriculture. You can tour at your own pace, meet the farmers, learn how foods are produced, sample local foods, & kids can meet farm animals.
Go to http://www.openfarmtours.com for more details.